Spider web is secreted by

Options

A. Salivary glands
B. Abdominal glands
C. Cephalothoracis glands.
D. None of the above.

Answer

**Step-by-Step Solution:**

1. **Identify the Structure Responsible for Silk Production**: In spiders, the structure responsible for the secretion of silk is known as the silk gland.

2. **Locate the Silk Gland**: The silk glands are located in the abdomen of the spider. This is why they are referred to as abdominal glands.

3. **Understand the Function of the Silk Gland**: The silk glands produce silk in a liquid form, which is primarily composed of proteins.

4. **Silk Formation Process**: When the silk is secreted, it travels through ducts. As the silk passes through these ducts, moisture is drawn out, and the silk solidifies into fibers.

5. **Conclusion**: Therefore, the spider web is secreted by the abdominal gland, which is a type of silk gland.

**Final Answer**: Spider web is secreted by the abdominal gland.

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